Vascular Plants

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Scientific names beginning with J:
4 genera
59 species, 17 subspecies and varieties
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Jaumea carnosafleshy jaumea, marsh jaumea
Distribution: Coastal, southern Vancouver Island, British Columbia, to southern California.
Habitat: Tidal flats and marshes.
Juglans ailantifoliaJapanese walnut
Juglans hindsiinorthern California walnut
Juglans nigrablack walnut
Distribution: In scattered locations across Washington, mostly east of the Cascades; central U.S. east to the Atlantic Coast.
Habitat: Disturbed areas and riparian zones, typically in the vicinity of urbanized areas where escaped from cultivation.
Juglans regiaEnglish walnut
Juncus acuminatusknotty leaf rush, sharp-fruited rush, tapered rush
Distribution: Mostly west of the Cascades, British Columbia south to California, east to southwest Idaho and Arizona.
Habitat: Ditches, lake margins, meadows and other wet places.
Juncus alpinoarticulatusalpine rush, northern rush
Distribution: In scattered location on both sides of the Cascades crest in Washington; scattered throughout North America from Alaska to Washington, east across Canada and central U.S. to northeastern North America.
Habitat: Wet meadows, pond and lake shores.
Juncus anthelatusgiant path rush
Juncus articulatus
ssp. articulatus – jointed rush, jointleaf rush
Juncus balticus
Distribution: Widely distributed throughout much of Washington; widely distributed throughout much of western and central North America, less widely distributed in eastern North America.
Habitat: Wet places, often where saline or alkaline.
ssp. ater – Baltic rush, valley rush
Juncus bolanderiBolander's rush
Distribution: West of the Cascades, southern British Columbia south to coastal California.
Habitat: Marshes and river bottoms from tidelands to the lower mountains.
Juncus brevicaudatusnarrow-panicled rush
Juncus breweriBrewer's rush, salt rush
Juncus bufonius
var. bufonius – toad rush
var. congestus – clustered toad rush
var. occidentalis – western toad rush
Juncus bulbosusbulbous rush, spreading rush
Distribution: Introduced at several locations in wsestern Washington; British Columbia south to Oregon, east across northern Canada to the Atlantic Coast; Europe.
Habitat: Sandy or peaty shores of streams and pools.
Juncus canadensisCanadian rush
Distribution: Introduced from eastern United States to a few locations in western Washington.
Habitat: Brackish swamps, acid bogs, tidal flats and beaches.
Juncus confususColorado rush
Juncus conglomeratuscompact rush
Juncus covilleiCoville's rush
Juncus diffusissimusdiffuse rush, slimpod rush
Juncus drummondiiDrummond's rush, threeflower rush
Distribution: Alaska south to California, east to the Rockies, Alberta to New Mexico.
Habitat: Alpine to subalpine meadows, streambanks, talus slopes and ridges.
Juncus dudleyiDudley's rush
Juncus effusus
Distribution: Alaska to Baja California, east to Newfoundland and most of central and eastern United States.
Habitat: Moist areas, from coastal tideflats to mountain meadows and ridges.
ssp. effusus – soft rush
ssp. pacificus – common rush, Pacific rush
ssp. solutus – eastern soft rush
Juncus ensifoliusdagger rush
Distribution: Widely distributed throughout the mountainous areas of Washington; Alaska south to California, east to the Great Plains; introduced in eastern North America.
Habitat: Shores of ponds and streams, wet meadows, fens, seeps, and ditches from low to high elevations in the mountains.
Juncus ensifoliusdaggerleaf rush
Distribution: Widely distributed throughout the mountainous areas of Washington; Alaska south to California, east to the Great Plains; introduced in eastern North America.
Habitat: Shores of ponds and streams, wet meadows, fens, seeps, and ditches from low to high elevations in the mountains.
Juncus falcatus
ssp. sitchensis – Alaskan sickle leaved rush
Juncus filiformisthread rush
Distribution: Alaska to northern Oregon, east in Canada to Newfoundland and south to Pennsylvania and Montana.
Habitat: Lake shores and coastal bogs to montane marshes and meadows; in Washington, from near sea level to about 5000 feet elevation.
Juncus gerardi
Distribution: Occurring west of the Cascades crest in counties along the Puget Sound and outer coast; British Columbia south to Oregon, east sporadically across the U.S. to the northern Atlantic coast of the U.S. and Canada; circumboreal.
Habitat: Coastal salt marshes.
ssp. gerardi – black grass, Gerard's rush, mud rush
Juncus hemiendytus
var. hemiendytus – dwarf rush, Hermann's dwarf rush
Juncus hesperiusbog rush, coastal rush
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.
Habitat: Riparian forest, marshes, shores, peatlands, seeps, and ditches.
Juncus howelliiHowell's rush
Juncus inflexusblue rush
Juncus interiorinland rush
Distribution: Alberta south to Colorado, east to Quebec and Tennesee; occasional in eastern Washington.
Habitat: Dry, upland sites in prairies, exposed sites in disturbed areas, ditches in sandy or clayey soil
Juncus kelloggiiKellogg's dwarf rush
Juncus laccatusshiny rush
Juncus longistylislong-styled rush
Juncus mertensianusMertens' rush
Distribution: Alaska to California, east to Alberta, South Dakota and New Mexico
Habitat: Wet places along streams and lakes, mid- to high elevations in the mountains
Juncus nevadensis
Distribution: Southern British Columbia to California, east to the Rockies, Montana to New Mexico.
Habitat: Wet plasces, margins of streams and lakes, from near sea level to lower elevations in the mountains.
var. inventus – dune rush
var. nevadensis – Sierra rush
Juncus nodosusknotted rish, tuberous rush
Distribution: East of the Cascades, British Columbia to California, east to Nova Scotia and Maine.
Habitat: Ditches, ponds and wet places.
Juncus occidentaliswestern rush
Juncus orthophyllusstraight-leaved rush
Juncus oxymerispointed rush
Distribution: Southwest British Columbia to Caslifornia; in Washington, in the lowlands west of the Cascades.
Habitat: Wet meadows and lake shores.
Juncus parryiParry's rush
Distribution: British Columbia to California, east to Montana and Colorado; in the Olympics and Cascades of Washington
Habitat: Moist places, moderate to high elevations in the mountains
Juncus patensspreading rush
Juncus pelocarpusbrown-fruited rush
Juncus regeliiRegel's rush
Juncus saximontanusRocky Mountain rush
Juncus supiniformishair-leaved rush, spreading rush
Distribution: Alaska south along the coast west of the Cascades to Mendocino County, California.
Habitat: Marshes, ponds, ditches and rivers, often where submerged early in the season.
Juncus tenuispath rush, poverty rush, slender rush
Distribution: Alaska south to Mexico, east across southern Canada and most of the United States.
Habitat: Moist places.
Juncus tiehmiiTiehm's dwarf rush
Juncus torreyiTorrey's rush
Distribution: British Columbia south, east of the Cascades, to California, east to Ontario and New York.
Habitat: Wet places, especially around lakes and along streams, form the lowlands to the lower mountains.
Juncus trilocularisfoothill rush
Juncus uncialisinch-high rush
Distribution: Oregon and California, occasional in estern Washington
Habitat: Margins of vernal pools and ponds.
Juncus vaseyiVasey's rush
Juniperus communis
Distribution: Much of Canada and the United States
Habitat: Lowland woods to mountain valleys and open, rocky alpine slopes
var. depressa – common juniper, dwarf juniper, ground juniper, prostrate juniper
var. montana – common juniper
Juniperus maritimaseaside juniper
Distribution: Puget Trough in Washington; Georgia Basin in British Columbia
Habitat: Open areas at low to mid-elevation in the mountains.
Juniperus occidentalis
Distribution: Common east of the Cascades in Oregon, south to California; occasional north to Kittitas County in Washington and east to Idaho
Habitat: Desert foothills and lower mountains
var. occidentalis – western juniper.
Juniperus scopulorumRocky Mountain juniper, Rocky Mountain redcedar
Distribution: British Columbia to Oregon, east to Nebraska
Habitat: Coastal islands to inland valleys and lower mountains